What is the intensity level of a sound signal, by what formula can it be found in decibels? Solve the problem: the initial intensity of the harmonic sound signal is 10 times greater than the threshold for frequency v=1000Hz, present in the formula for calculating the intensity level L1 and equal to I0=10^-12 W/m^2. What is the intensity level of this sound signal? What will the intensity level be if the signal intensity itself increases from the specified initial level by 1000 times? What frequency must this signal have so that the increase in dB intensity level is exactly equal to the increase in the phonic volume level?

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